将窗口保持在顶部WPF [英] Keep window on top WPF

问题描述

我在将Window保持在TOP上有问题吗?我使用MVVM WPF

I have problem to keep Window on TOP ? I work with MVVM WPF

我在ConfigRole模型中有以下代码:

I have this code in ConfigRole Model:

if (!System.Windows.Application.Current.Windows.OfType<ConfigRole>().Any())
        {                 
            ConfigRoleModel configRoleModel = new ConfigRoleModel();
            ConfigRole winconfigRole = new ConfigRole();
            winconfigRole.DataContext = configRoleModel;
            winconfigRole.Show();
            winconfigRole.Topmost = true;
            winconfigRole.Focus();
        }

这里的新窗口是正确的，它在TOP上，

Here the new Window is Correct, it is on TOP,

但是在那之后，我想在ConfigRoleModel的TOP上显示其他窗口，这是代码ConfigRoleModel:

but after that, I want to show other Window on TOP from ConfigRoleModel , this is code ConfigRoleModel :

if (!System.Windows.Application.Current.Windows.OfType<ButtonListView>().Any())
         {                 
    ButtonListViewModel buttonListViewModel = new ButtonListViewModel();
             ButtonListView winconfigRole = new ButtonListView();
             winconfigRole.DataContext = buttonListViewModel;

             winconfigRole.Show();
             winconfigRole.Topmost = true;
             winconfigRole.Focus();
         }

所以，这里我没有这个新的TOP窗口！我不明白！它与第一个..

So ,here I don't have this new Window on TOP! I don't understand! it is the same code like the first ..

我也尝试

winconfigRole.ShowDialog();

和

Window.activate()

还有同样的问题！

我该如何解决?

谢谢

推荐答案

var owner = System.Windows.Application.Current.Windows.OfType<Window>().FirstOrDefault(w=>w.IsActive);
var vm = new ButtonListViewModel();
var dialog = new ButtonListView()
      {
          DataContext = vm,
          Owner = owner,
      };

if ( dialog.ShowDialog() == true)
{
   //TODO: ...
}

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